<html>
	<head>
		<meta http-equiv="content-type" content="text/html; charset=utf-8">
		<title>查看JS的几种写法</title>
		<script type="text/javascript" src="eample.js"></script>
	</head>
	<body>
		<script type="text/javascript">


		console.log(PHP4.size('123'));

		</script>
	</body>
</html>
